package com.example.day08.ex05;

import java.util.Scanner;

public class StringTest03 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入一个字符串：");
        String line = sc.nextLine();
        int bigCount = 0;
        int smallCount = 0;
        int numberCount = 0;
        for(int i=0; i<line.length(); i++) {
            char ch = line.charAt(i);
            if(ch>='A' && ch<='Z') {
                bigCount++;
            } else if(ch>='a' && ch<='z') {
                smallCount++;
            } else if(ch>='0' && ch<='9') {
                numberCount++;
            }
        }
        System.out.println("大写字母：" + bigCount + "个");
        System.out.println("小写字母：" + smallCount + "个");
        System.out.println("数字：" + numberCount + "个");
    }
}
